Housing for an elevator door system

Abstract

The elevator landing door device of the present invention protects the connector from water immersion even without a housing cover. The elevator landing door device of the present invention includes: a guide rail frame; a door lock switch; and a wiring fixing bracket mounted on the guide rail frame for connecting and fixing switch wiring connected to the door lock switch and tower wiring connected to a control panel located in the hoistway via a connector. The wiring fixing bracket integrally includes: a first plate-shaped portion fixed to the guide rail frame; a second plate-shaped portion bent at the end of the first plate-shaped portion and vertically disposed; and a third plate-shaped portion bent below the first plate-shaped portion. The connector is disposed on the third plate-shaped portion, and the switch wiring and tower wiring are connected to the connector from below the third plate-shaped portion.

Description

Technical Field

[0001] This invention relates to elevator landing door devices. Background Technology

[0002] Generally, elevator landing door devices have door lock switches that detect the locking and unlocking of the landing doors (e.g., Patent Document 1). The door lock switches are electrically connected to the elevator control panel via wiring. Furthermore, as... Figure 8 As shown, the tower wiring 101, which connects to the control panel (not shown) inside the shaft, and the switch wiring 102, which connects to the door lock switch, are connected via connector 103, thereby electrically connecting the door lock switch and the control panel. Figure 9 As shown in the diagram, connector 103 is mounted to wiring bracket 104 of the landing door device, and wiring bracket 104 is mounted to guide rail frame 105 of the landing door device. Furthermore, door lock switch 106 is mounted to guide rail frame 105, for example, via guide rail and bracket (not shown). Existing technical documents Patent documents

[0003] Patent Document 1: Japanese Patent Application Publication No. 2004-155572 Summary of the Invention The technical problem that the invention aims to solve

[0004] In existing elevator landing door devices, such as Figure 10 As shown, water flowing down the wall 107 of the shaft may, as indicated by the arrows in the figure, immerse itself in the connector 103 along the surface of the guide frame 105 or the wiring mounting bracket 104, causing poor contact. Furthermore, as... Figure 11 As shown, if the tower wiring 101 approaches or contacts the guide frame 105 or the wiring fixing bracket 104, water may seep into the connector 103 from the guide frame 105 or the wiring fixing bracket 104 along the tower wiring 101, thereby causing poor contact.

[0005] Therefore, in order to protect connector 103 from water immersion, such as Figure 12 As shown, a possible structure is to mount the housing 108 on the wiring bracket 104, cover the connector 103 through the housing 108, and connect the tower wiring 101 and the switch wiring 102 from the bottom of the housing 108 toward the connector 103. However, this structure increases the number of parts due to the addition of the housing 108. In this specification, "water" can be replaced with "liquid".

[0006] The purpose of this invention is to provide an elevator landing door device that can protect the connectors from water ingress even without covering them with a housing. Technical means for solving technical problems

[0007] To address the aforementioned problems, structures such as those described in the claims are employed. This application encompasses multiple means of solving the aforementioned problems, but one example is an elevator landing door device comprising: a guide rail frame on which a door guide rail is mounted to guide the movement of the landing door; a door lock switch for detecting the locking and unlocking of the landing door; and a wiring fixing bracket, which is mounted on the guide rail frame and is used to connect and fix switch wiring connected to the door lock switch and tower wiring connected to a control panel disposed in the hoistway via a connector. The wiring fixing bracket integrally comprises: a first plate-shaped portion fixed to the guide rail frame; a second plate-shaped portion bent at the end of the first plate-shaped portion and vertically disposed; and a third plate-shaped portion below the first plate-shaped portion and bent at a position offset from a water path along the surface of the second plate-shaped portion, the front end of the third plate-shaped portion being disposed at the same height as or higher than the base end of the third plate-shaped portion, a connector being disposed on the third plate-shaped portion, and the switch wiring and tower wiring being connected to the connector from below the third plate-shaped portion. Invention Effects

[0008] According to the present invention, the connector can be protected from water immersion even without the housing covering the connector for wiring and switch wiring inside the connection tower. Other technical issues, structures, and effects not mentioned above will be further clarified through the following description of the implementation methods. Attached Figure Description

[0009] Figure 1 This is a front view of the elevator landing door device according to Embodiment 1. Figure 2 This is an enlarged front view of a portion of the elevator landing door device according to Embodiment 1. Figure 3 This is an enlarged side view of a portion of the landing door device of the elevator in Embodiment 1. Figure 4 This is an enlarged view illustrating the mounting structure of the connector in the third plate section. Figure 5 This is a diagram illustrating the movement path of water in Implementation Method 1. Figure 6 This is a front view showing the structure of the wiring fixing bracket provided in the elevator landing door device of Embodiment 2. Figure 7 This is a side view showing the structure of the wiring fixing bracket provided in the elevator landing door device of Embodiment 2. Figure 8It is an enlarged side view of a portion of the landing door device of a conventional elevator. Figure 9 It is an enlarged side view of a portion of the landing door device of a conventional elevator. Figure 10 This is a diagram illustrating the movement path of water in an existing example (one of them). Figure 11 This is a diagram illustrating the movement path of water in the existing example (Part Two). Figure 12 This is a diagram showing the connector covered by a housing. Detailed Implementation

[0010] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this specification and drawings, elements having substantially the same function or structure are labeled with the same reference numerals, thereby omitting repeated descriptions.

[0011] <Implementation Method 1> Figure 1 This is a front view of the elevator landing door device according to Embodiment 1. like Figure 1 As shown, the elevator landing door assembly 10 includes: a door frame 11; a landing door 12 for opening and closing an entrance / exit formed within the frame of the door frame 11; a guide rail frame 14 with a door guide rail 13 for guiding the movement of the landing door 12; a hanger roller 15 that rotates and moves on the door guide rail 13; and includes: a door hanger 16 for supporting the landing door 12 in a suspended state; a door lock switch 17 for detecting the locking and unlocking of the landing door 12; a wiring fixing bracket 18 mounted on the guide rail frame 14; and a sill 19 having a groove for guiding the movement of the landing door 12.

[0012] The landing door 12 consists of two door panels, each door panel moving at a specified speed ratio. Figure 1 It moves left and right to open and close the entrances and exits of the level station. Figure 1 This shows the status of the closed landing door 12.

[0013] The guide rail frame 14 is a long, slender component that extends along the moving direction (opening and closing direction) of the landing door 12. Although not shown in the figure, the guide rail frame 14 is mounted on the wall of the hoistway using brackets, bolts, etc.

[0014] The door lock switch 17 is disposed at one end of the long side of the guide rail frame 14. The door lock switch 17 detects the engagement of the door hook 20 with the door lock claw (not shown) as the locked state of the landing door 12, and detects the disengagement of the door hook 20 from the door lock claw as the unlocked state of the landing door 12. The door lock switch 17 outputs a detection signal, which becomes on when the landing door 12 is detected to be locked, and becomes off when the landing door 12 is detected to be unlocked.

[0015] The door lock switch 17 is mounted to the guide rail frame 14, for example, via the door guide rail 13 and a switch mounting bracket (not shown). The door hook 20 is rotatably mounted to the door hanger 16 and moves with the door hanger 16. The door lock claw is mounted to the guide rail frame 14 together with the door lock switch 17.

[0016] Figure 2 This is a magnified front view of a portion of the elevator's landing door device according to Embodiment 1. Figure 3 This is a side view of a portion of the elevator landing door device according to Embodiment 1, magnified. Figure 3 The diagram shows the wiring fixing bracket 18 and the like as viewed from the long side of the guide rail frame 14.

[0017] like Figure 2 and Figure 3 As shown, the guide rail frame 14 integrally comprises an upper plate portion 21 and a lower plate portion 22. The guide rail frame 14 is, for example, an integral structure obtained by stamping (shearing, bending, etc.) a single sheet of metal. The upper plate portion 21 is horizontally arranged. The lower plate portion 22 is bent at a right angle from the upper plate portion 21. The lower plate portion 22 is vertically arranged.

[0018] The wiring bracket 18 is used to connect and secure the switch wiring 31 connected to the door lock switch 17 and the tower wiring 32 connected to the control panel (not shown) via connector 33. The switch wiring 31 extends from the door lock switch 17 to output the aforementioned detection signal. The control panel is a device for unified control of the elevator. The control panel is located in the upper part of the hoistway (e.g., in the machine room).

[0019] The wiring bracket 18 integrally comprises: a first plate-shaped portion 25 fixed to the guide rail frame 14; a second plate-shaped portion 26 bent at the end of the first plate-shaped portion 25; and a third plate-shaped portion 27 bent below the first plate-shaped portion 25. The wiring bracket 18 is, for example, an integral structure obtained by stamping (shearing, bending, etc.) a metal plate.

[0020] The first plate-shaped portion 25 is arranged horizontally. The first plate-shaped portion 25 is fixed to the guide rail frame 14 by fixing bolts (not shown) or the like, while overlapping the upper plate portion 21 of the guide rail frame 14.

[0021] The second plate-shaped portion 26 is bent at a right angle at the end of the first plate-shaped portion 25. The second plate-shaped portion 26 is arranged vertically opposite to the lower plate portion 22 of the guide rail frame 14.

[0022] like Figure 3 As shown, the third plate-shaped portion 27 is bent so that, when viewed from the long side of the guide rail frame 14, it protrudes in the same direction as the first plate-shaped portion 25. As a result, the space above the third plate-shaped portion 27 is covered by the upper plate portion 21 of the guide rail frame 14.

[0023] The third plate-shaped portion 27 is positioned closer to the door lock switch 17 than the first plate-shaped portion 25 along the long side of the guide rail frame 14. Furthermore, the third plate-shaped portion 27 is positioned along the water path ( ) along the surface of the second plate-shaped portion 26. Figure 2 The deviation of the path (indicated by the dashed arrow) is shown in the diagram. Drainage channel 28 ( Figure 2 A boundary portion is formed between the second plate-shaped portion 26 and the third plate-shaped portion 27. The drainage groove 28 is a groove used to prevent water flowing down the surface of the second plate-shaped portion 26 from being transferred to the third plate-shaped portion 27.

[0024] like Figure 3 As shown, the third plate-shaped portion 27 is inclined relative to the horizontal plane, such that the front end portion 27a of the third plate-shaped portion 27 is positioned higher than the base end portion 27b of the third plate-shaped portion 27. The bending angle θ of the third plate-shaped portion 27, with reference to the second plate-shaped portion 26, is an angle greater than 90 degrees and less than 180 degrees, i.e., an obtuse angle. This bending angle θ is defined as the angle formed by the lower surface of the third plate-shaped portion 27 relative to the reference plane, with the surface of the second plate-shaped portion 26 as the reference plane.

[0025] Connector 33 is disposed on the upper surface of the third plate-shaped portion 27 of the wiring fixing bracket 18. Furthermore, connector 33 is supported by connector support member 35 (described in detail later) in a state that floats above the upper surface of the third plate-shaped portion 27. In contrast, switch wiring 31 and tower wiring 32 are connected to connector 33 from below the third plate-shaped portion 27.

[0026] like Figure 2 As shown, the switch wiring 31 is fixed to the wiring bracket 18 via wiring stops 36 and 37. The wiring stop 36 is positioned below the wiring stop 37. The wiring stop 37 is positioned on one end of the third plate-shaped portion 27 along the long side of the guide rail frame 14. The switch wiring 31, extending from the door lock switch 17, extends sequentially to the connector 33 via the wiring stops 36 and 37.

[0027] The tower cabling 32 is secured to the cabling fixing bracket 18 via cabling stops 38 and 39. Cabling stops 38 are positioned below cabling stops 39. Cabling stops 39 are positioned on the other end of the third plate-shaped portion 27 (opposite to cabling stops 37) along the long side of the guide rail frame 14. The tower cabling 32, extending from the control panel, extends along the hoistway wall to the guide rail frame 14 and the cabling fixing bracket 18 of the landing door device 10, and then sequentially extends to the connector 33 via cabling stops 38 and 39. Furthermore, the remaining length of the tower cabling 32 is secured to the second plate-shaped portion 26 of the cabling fixing bracket 18 via cabling stops 38.

[0028] Figure 4 This is an enlarged view illustrating the mounting structure of the connector in the third plate section. like Figure 4 As shown, connector 33 is disposed on the upper surface 271 side of the third plate-shaped portion 27 and is supported by a plurality of connector support members 35 (two in the example shown). The connector support members 35 are disposed one by one on both sides of connector 33, sandwiching connector 33 in the middle.

[0029] The connector support member 35 has a clamping portion 35a, a spacer portion 35b, and a binding portion 35c. The clamping portion 35a has suitable radial flexibility and engages with the lower surface 272 of the third plate-shaped portion 27 through a through hole 29 provided in the third plate-shaped portion 27. The spacer portion 35b is disposed between the clamping portion 35a and the binding portion 35c. The spacer portion 35b is configured to clamp the third plate-shaped portion 27 between the clamping portion 35a and the spacer portion 35b. The spacer portion 35b has a predetermined height dimension T, which ensures a predetermined space between the upper surface 271 of the third plate-shaped portion 27 and the connector 33. The connector 33 is disposed in a state that floats above the upper surface 271 of the third plate-shaped portion 27, corresponding to the height dimension T of the spacer portion 35b. The binding portion 35c is used to bind the switch wiring 31 and the tower wiring 32.

[0030] In the elevator landing door device 10 of Embodiment 1 described above, the structure of the wiring fixing bracket 18 is as follows: a third plate-shaped portion 27 is formed below the first plate-shaped portion 25 by bending, at a position offset from the path of water along the surface of the second plate-shaped portion 26. A connector 33 is disposed on this third plate-shaped portion 27, and the switch wiring 31 and the tower wiring 32 are connected to the connector 33 from below the third plate-shaped portion 27. Thus, as... Figure 5As shown by the arrow in the diagram, water moving along the wall 40 of the shaft flows down the surface of the guide frame 14 and the surface of the wiring bracket 18, instead of passing through the third plate-shaped portion 27. Therefore, even without covering the connector 33 that connects the switch wiring 31 and the tower wiring 32 with a housing, the connector 33 can be protected from water ingress. Furthermore, since a housing is not required, the equipment cost of purchasing a housing can be reduced, and the work of fixing the wiring to the housing and fixing the housing to the wiring bracket 18 can be reduced.

[0031] Furthermore, in the landing door device 10 of Embodiment 1, the third plate-shaped portion 27 is inclined relative to the horizontal plane, such that the front end portion 27a is positioned higher than the base end portion 27b. Therefore, even when water moving along the surface of the wiring fixing bracket 18 reaches the base end portion 27b of the third plate-shaped portion 27, the inclination of the third plate-shaped portion 27 can suppress the movement of water from the base end portion 27b to the front end portion 27a.

[0032] Furthermore, the landing door device 10 of Embodiment 1 includes a connector support member 35, which supports the connector 33 in a state where the connector 33 is suspended from the upper surface 271 of the third plate-shaped portion 27. Thus, even if water (water droplets, water film, etc.) is present on the upper surface 271 of the third plate-shaped portion 27, the connector 33 can be prevented from coming into contact with water.

[0033] Furthermore, in the landing door device 10 of Embodiment 1, the third plate-shaped portion 27 is bent so that it protrudes in the same direction as the first plate-shaped portion 25 when viewed from the long side of the guide rail frame 14. As a result, the upper plate portion 21 of the guide rail frame 14, which is positioned above the third plate-shaped portion 27, and the first plate-shaped portion 25 of the wiring fixing bracket 18 act as an umbrella, thus providing an advantage in terms of waterproofing.

[0034] Furthermore, in the landing door device 10 of Embodiment 1, a drainage groove 28 is formed at the boundary between the second plate-shaped portion 26 and the third plate-shaped portion 27. This more reliably prevents water from seeping from the second plate-shaped portion 26 into the third plate-shaped portion 27.

[0035] Furthermore, in the landing door device 10 of Embodiment 1, the third plate-shaped portion 27 is positioned closer to the door lock switch 17 than the first plate-shaped portion 25. Therefore, when the operator connects the switch wiring 31 and the tower wiring 32 via the connector 33, the connector 33 can be positioned near the operator's standing position, located near the elevator entrance / exit. This improves the visibility and ease of installation for the connector connection operation.

[0036] <Implementation Method 2> The structure of the wiring fixing bracket is different in the floor door device of Embodiment 2 compared to that of Embodiment 1. Figure 6 This is a front view showing the structure of the wiring fixing bracket provided with the elevator landing door device according to Embodiment 2. Figure 7 This is a side view showing the structure of the wiring fixing bracket provided in the elevator landing door device of Embodiment 2. Figure 7 The diagram shows the wiring support bracket viewed from the long side of the guide rail frame.

[0037] like Figure 6 and Figure 7 As shown, the wiring fixing bracket 18A is a bracket integrally having a first plate-shaped portion 25A fixed to a guide rail frame (not shown), a second plate-shaped portion 26A bent at the end of the first plate-shaped portion 25A, and a third plate-shaped portion 27A bent below the first plate-shaped portion 25A.

[0038] The first plate-shaped portion 25A is arranged horizontally. Similar to Embodiment 1 described above, the first plate-shaped portion 25A is fixed to the guide rail frame by fixing bolts (not shown) or the like while overlapping on the guide rail frame.

[0039] The second plate-shaped portion 26A is bent at a right angle at the end of the first plate-shaped portion 25A. Similar to Embodiment 1 described above, the second plate-shaped portion 26A is arranged vertically opposite to the lower plate portion of the guide rail frame.

[0040] Similar to Embodiment 1 described above, the third plate-shaped portion 27A is inclined relative to the horizontal plane. Furthermore, the third plate-shaped portion 27A is formed below the first plate-shaped portion 25A (directly below in the illustrated example), and its width is narrower than that of the first plate-shaped portion 25A. Specifically, as... Figure 6 As shown, the third plate-shaped portion 27A is bent into protruding in the same direction as the first plate-shaped portion 25A while the central portion of the second plate-shaped portion 26A is cut out. Furthermore, the third plate-shaped portion 27A is positioned along the water path ( ) along the surface of the second plate-shaped portion 26. Figure 6 The deviation of the path (indicated by a double-dotted arrow) from the designated location. Drainage trough 28 ( Figure 6 It forms a boundary portion between the second plate-shaped portion 26A and the third plate-shaped portion 27A.

[0041] Furthermore, the installation structure of the connector and the routing of the wiring are basically the same as in Embodiment 1 above, so the description is omitted.

[0042] In Embodiment 2 described above, the third plate-shaped portion 27A is formed below the first plate-shaped portion 25A, and its width is narrower than that of the first plate-shaped portion 25A. Therefore, compared to Embodiment 1 described above, the size of the wiring fixing bracket 18A can be reduced.

[0043] <Examples of changes, etc.> Furthermore, the present invention is not limited to the embodiments described above, but also includes various modifications. For example, the content of the present invention has been described in detail in the above embodiments for ease of understanding, but the present invention is not limited to having all the structures described in the above embodiments. In addition, a part of the structure of a certain embodiment can be replaced with the structure of another embodiment. In addition, the structure of another embodiment can be added to the structure of a certain embodiment. In addition, a part of the structure of each embodiment can be deleted, added, or replaced with other structures.

[0044] In addition, in the above embodiment, as a preferred example, a structure is adopted in which the third plate-shaped portion 27 of the wiring fixing bracket 18 is inclined relative to the horizontal plane. However, it is not limited to this. A structure in which the front end portion 27a of the third plate-shaped portion 27 is arranged at the same height position as the base end portion 27b can also be adopted, that is, a structure in which the third plate-shaped portion 27 is arranged horizontally.

[0045] In addition, in the above embodiment, as a preferred example, the third plate-shaped portion 27 is bent in the same direction as the first plate-shaped portion 25 when viewed from the long side direction of the guide rail frame 14. However, it is not limited to this, the third plate-shaped portion 27 may also be bent in the opposite direction to the first plate-shaped portion 25.

[0046] In addition, in the above embodiment, the first plate-shaped portion 25 of the wiring fixing bracket 18 overlaps above the upper plate portion 21 of the guide rail frame 14, but it is not limited to this. It is also possible that the first plate-shaped portion 25 of the wiring fixing bracket 18 overlaps below the upper plate portion 21 of the guide rail frame 14. Label Explanation

[0047] 10… Floor station door device, 12… Floor station door, 13… Door guide rail, 14… Guide rail frame, 17… Door lock switch, 18, 18A… Wiring fixing bracket, 21… Upper plate, 25, 25A… First plate-shaped part, 26, 26A… Second plate-shaped part, 27, 27A… Third plate-shaped part, 27a… Front end, 27b… Base end, 28, 28A… Drainage channel, 31… Switch wiring, 32… Tower wiring, 33… Connector, 35… Connector support member.

Claims

1. A landing door device for an elevator, comprising: A guide rail frame, on which door guide rails are installed to guide the movement of the landing doors; A door lock switch, used to detect the locking and unlocking of the landing door; and A wiring fixing bracket, which is mounted on the guide rail frame, is used to connect and fix the switch wiring connected to the door lock switch and the tower wiring connected to the control panel located in the hoistway via connectors. The elevator's landing door device is characterized in that... The wiring fixing bracket integrally has: The first plate-shaped portion fixed to the guide rail frame; A second plate-shaped portion that is bent at the end of the first plate-shaped portion and arranged vertically; and The third plate-shaped portion is located below the first plate-shaped portion and is bent at a position that deviates from the water path along the surface of the second plate-shaped portion. The front end of the third plate-shaped portion is positioned at the same height as or higher than the base end of the third plate-shaped portion. The connector is disposed on the third plate-shaped portion. The switch wiring and the tower wiring are connected to the connector from below the third plate.

2. The elevator landing door device as described in claim 1, characterized in that, The third plate-shaped portion is inclined relative to the horizontal plane, such that the front end portion is positioned at a higher position than the base end portion.

3. The elevator landing door device as described in claim 1, characterized in that, It also includes a connector support member that supports the connector in a state in which the connector is lifted off the upper surface of the third plate-shaped portion.

4. The elevator landing door device as described in claim 1, characterized in that, The guide rail frame includes a horizontally arranged upper plate. The first plate-shaped portion is fixed to the guide rail frame in a state of overlapping with the upper plate portion. The third plate-shaped portion is bent so that, when viewed from the long side of the guide rail frame, the third plate-shaped portion protrudes in the same direction as the first plate-shaped portion.

5. The elevator landing door device as described in claim 1, characterized in that, A drainage groove is formed at the boundary between the second plate-shaped portion and the third plate-shaped portion.

6. The elevator landing door device as described in claim 1, characterized in that, The third plate-shaped portion is positioned closer to the door lock switch than the first plate-shaped portion.

7. The elevator landing door device as described in claim 1, characterized in that, The third plate-shaped portion is formed below the first plate-shaped portion and is narrower than the width of the first plate-shaped portion.

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